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NEMO Tensor Elite Ultralight Insulated vs Zpacks Zip Around Sleeping Bag

Weight and specs compared for 2026 — and which one to choose.

NEMO Tensor Elite Ultralight Insulated is the lighter option — 314 g lighter than the Zpacks Zip Around Sleeping Bag (51% less weight). If grams matter to you, that is the one to beat.
Spec NEMO Tensor Elite Ultralight Insulated Zpacks Zip Around Sleeping Bag
Weight 298 g · 0.298 kg · 0.66 lb 612 g · 0.612 kg · 1.35 lb
Brand NEMO Zpacks
Category Sleep System Sleep System
NEMO Tensor Elite Ultralight Insulated
298 g

Lightest insulated inflatable sleeping pad on the market. Trapezoidal baffles eliminate cold spots; inflates in under 60 seconds with pump sack.

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Zpacks Zip Around Sleeping Bag
612 g

900-fill-power down sleeping bag with unique side-entry zipper. Eliminates the draft collar for a cleaner, lighter design.

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NEMO Tensor Elite Ultralight Insulated vs Zpacks Zip Around Sleeping Bag: which should you buy?

If saving weight is your priority, the NEMO Tensor Elite Ultralight Insulated wins — at 298 g it is 314 g (51%) lighter than the Zpacks Zip Around Sleeping Bag (612 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest sleep system page, or browse the full gear weight database.

More sleep system comparisons